. "3 letters"@en . "Correspondence with Perles, F.S."@en . . . . . . "Dr F. S. Perles was an Israeli avocate."@en . "This material has been digitised. Readers should book a reading room terminal to access it."@en . "WL3000/9/1/1082" . . . "Correspondence regarding the publication of an article Perles had authored for The Wiener Library’s Bulletin, and the affiliated payment."@en . .